Organ-pedal cover



(No Model.)

H. BUIKEMA.

ORGAN PEDAL COVER.

No. 439,863 Patented Nov. 4, 1890.

- f"? R N w E if ii 1 K8 {1 21% $2 25 k w\ H I UNITED STATES PATENT OFFICE.

HOMMO BUIKEMA, OF NORTH ST. PAUL, MINNESOTA.

ORGAN-PEDAL COVER.

SIPEGIFICATION forming part of Letters Patent No. 439,863, dated November 4, 1890.

Application filed April 24, 1889. Serial No. 308,472. (No model.)

To aZZ whom it may concern.-

l 3e it known that I, HOMMO BUIKEMA, a citizen of the United States, residing at North St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and uset'ul Qigan-Pedal Cover, of which the followmg is a specification.

My invention relates to improvements in organ-pedal covers automatically operated simultaneously with the opening and closing of the lid or fall-board, said covers serving toexclude dust, mice, &c., from the body of the 1nstrument when the same is not in use. I

I-Ieretofore pedal-covers have been hinged to the top of the pedal-opening and made of two pieces hinged together so that they could be folded against the front of the organcase and themselves. i

The objects of my invention are, first, to provide a pedal-cover made of a single piece, which may be framed and paneled to prevent warping and present a sightly appearance, and, second, to have it so move as to interfere as little as possible with objects in front of the organ which might injure it and its operating mechanism and show but one side of the cover, and, third, to have it disconnected from the organ-case, thereby avoiding the use of grooves, brackets, slides, trunnions, pins, &c., which warp, swell, and become clogged with dust.

My invention consists of certain novel features of construction and combination of parts of the mechanism operating such pedalcover and the pedal-cover.

Referring to the drawings forming part of this specification, Figure 2 is a vertical section of an organ-case, showing my improved pedal-cover; and Fig. 1 a rear view of the same, partly broken away.

Similarletters refer to similar parts throughout both views.

In the front of the organ-ease is the fallboard or cover E, hinged to the frame F at on, its other end pivoted to the block 0 at 72, attached to the frame-work of the organ-case. Fastened to opposite ends of the framework F, by means of the eyebolts H II, are the rods D D, pivoted to the e'yebolts at their upper ends and to the levers G G at their lower, said levers being fulcrumed by the pivots r r to the organ-ease so as to admit of vertical movement. The movable ends of the levers G G are pivoted to the rods P P, the upper ends of said rods being pivoted at U to the bent lever-rod A. Said bent rod, being journaled by the bracket X X,passes through the brackets V V, attached to the organ-frame, and thence horizontally across the back of the pedal-cover under the brackets TV V, attached thereto, the ends of the rod A being bracketed to the organ-frame at a: Pivoted to the lower ends of the pedal-cover at i and the frame-work atl is the angle guiderod B.

The operation of my improved pedal-cover is as follows, viz: XV hen the lid or fall-board E is opened to uncover the keys, (not shown in drawings,) it swings inward by reason of the frame-work F turning upon the pins or or until it assumes the position shown by the dotted lines E on F. The rods D D, pinned to the eyebolts H H, attached to the framework F, are depressed and swing inward, as shown by dotted line D. The lower end of the rods D D being pivoted to the levers G G, these levers are depressed, and by reason of the pins 0 '7' on which they turn assume the position shown by the dotted lines G. The swing-rods 1 P, pivoted to the free ends of the levers G G, are likewise depressed, carrying with them the inner ends of the bent rod A, which revolves in the brackets V V, X X, and V W, and on whose outer ends swings the pedal-cover outward and upward until it assumes the position shown by the dotted lines 0, and guided thereto by the bent guidearms 13 13, the other parts of the mechanism assuming positions shown by the dottedlines G, P, and B. XVhen the fall-board E is closed or shut, the reverse of these motions takes place and the pedals are again covered.

I am aware that heretofore pedal-covers have been made to work automatically with the opening of the lid or fall-board, and that rods and levers have been used as part of the operating mechanism; also that pedal-covers hinged to close against the front of the organ and also against themselves have heretofore been used. llence I do not claim these fea tures.

\Vhat I do claim as new, and desire to secure by Letters Patent, is

1. The combination, with an orgaircase provided with a pedalopening, of a pedal-cover for the same, a bent operating-lever pivoted to the said cover, and a guide-arm pivoted at one end to the case and at the other end to the cover at or near its lower end, substan: tially as described.

2. The combination, with an organ-case provided with a pedal-opening, of a pedal-cover for the same, a bent operating-lever pivoted [0 to the said cover, and a guide-arm pivoted at one end to the case and at the other end to the cover at or near its lower end, the fallboard, and operating mechanism, substantially such as described, connecting said fal iboard' and bent lever, all substantially as described; and for the purpose set forth.

HOMMO BUIKEMA.

Witnesses:

' RUssELL'H. CURTIS,

GEORGE D. ANTHONY. 

